Beam for Measuring Deformation Velocity of Material Surface under Dynamic Load
A technology of dynamic load and surface deformation, applied in linear/angular velocity measurement, velocity/acceleration/shock measurement, and the use of repetitive force/pulse force to test the strength of materials, etc., which can solve the problems of large measurement error and low measurement efficiency.
Active Publication Date: 2020-11-03
WUHAN WUDA ZOYON SCI & TECH
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Problems solved by technology
This type of measurement method has problems such as low measurement efficiency and large errors in measurement results affected by material surface texture fluctuations.
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[0010] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0011] In view of the demand for measuring the surface deformation velocity of the material in the prior art, the embodiment of the present invention provides a measuring beam for the surface deformation velocity of the material, which can simultaneously obtain the vertical springback deformation velocity and the vertical downward deformation velocity of the measured mat...
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An embodiment of the present invention provides a beam for measuring the surface deformation velocity of a material under dynamic load. The beam includes: a beam body, a first-type speedometer, and a second-type speedometer; On the beam body, the beam body is installed on the measurement carrier; the measurement carrier is used to move along the surface of the measured material and apply a dynamic load to the surface of the measured material; the first type of speedometer is used to measure the measured force behind the dynamic load The vertical rebound deformation velocity of the material surface; the second type of velocimeter is used to measure the vertical downward deformation velocity of the measured material surface in front of the dynamic load force. The beam for measuring the deformation velocity of the material surface under the action of the dynamic load provided by the embodiment of the present invention can quickly and accurately obtain the vertical springback deformation velocity and the vertical direction Lower deformation speed.
Description
technical field [0001] Embodiments of the present invention relate to the field of material detection, and more specifically, relate to a beam for measuring surface deformation velocity of a material under dynamic load. Background technique [0002] When forces act on the exterior of a material (structure or component), stresses and strains occur within the material or structure. The ratio of stress to strain in a material is called modulus. The elastic modulus can be regarded as an index to measure the difficulty of elastic deformation of the material. The larger the value, the greater the stress that causes the material to undergo a certain elastic deformation, that is, the greater the stiffness of the material, that is, under a certain stress, the elastic The deformation is smaller. In order to evaluate the elastic modulus of materials, strain gauges are often used to directly measure the strain value of the tested material under stress conditions, that is, the modulus ...
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IPC IPC(8): G01N3/32
CPCG01M5/00G01B11/026G01P3/36G01B11/16G01N3/32
Inventor 曹民张德津林红王新林卢毅
Owner WUHAN WUDA ZOYON SCI & TECH